<div class="footer">
  <div class="left"></div>
  <div class="center">
    <span [@contentChange]="animeState" [innerText]="defalutMsg"></span>
  </div>
  <div class="right">
    <span *ngIf="progressFlg |async" [innerText]="progressMsg|async"></span>
  </div>
</div>
